Film blowing machine for PE plastic packaging bag production
By introducing smoothing and gathering components into the blown film machine, and using soft-bristled smoothing rollers to reduce film tension, the problem of wrinkles during film forming is solved, improving product quality and production efficiency.
Patent Information
- Application Number
- CN202423077395.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing blown film machines are prone to uneven wrinkling of the film due to hard contact during the forming and winding process. Conventional methods such as optimizing process parameters and improving the efficiency of the cooling system have problems of low production efficiency or high cost.
Design a blown film machine for the production of PE plastic packaging bags, employing a smoothing component and a gathering component. The smoothing component includes a soft-bristled smoothing roller that reduces tensile force through soft contact. The gathering component ensures the film is flattened by adjusting the positions of the guide roller and the smoothing roller.
This effectively prevents wrinkles from forming on the film before winding, improves product quality, and ensures film flatness and production efficiency.
Smart Images
Figure CN223520192U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of blown film machine technology, and specifically relates to a blown film machine for the production of PE plastic packaging bags. Background Technology
[0002] Wrinkles are primarily caused by uneven stretching due to hard contact during the blown film forming stage, which occurs during the cooling and winding of the molten plastic film. Conventional solutions include optimizing blown film process parameters, improving cooling system efficiency, and strictly controlling raw material quality. However, these methods also have drawbacks. First, optimizing process parameters typically requires time for experimentation and adjustment, leading to decreased production efficiency, especially when order demands change rapidly, potentially extending delivery times. Second, improving cooling system efficiency often requires increased equipment investment, including upgrading fan power or replacing with more expensive cooling equipment, thus increasing production costs. Therefore, we aim to design a blown film machine with a novel structure to address this problem. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blown film machine for the production of PE plastic packaging bags, and to solve the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution: a blown film machine for producing PE plastic packaging bags, comprising: a frame, a smoothing component and a gathering component, wherein a gathering component for gathering the blown film is fixed inside the upper end of the frame, and a smoothing component for conveying and guiding the gathered film is installed at the bottom of the frame.
[0005] A blown film module for producing blown film for packaging bags is installed in the middle of the bottom of the frame. An extension frame is welded to the middle of the left side of the frame, and a guide roller for guiding is rotatably installed in the middle of the left end of the extension frame.
[0006] The smoothing component includes a frame, a mounting box, and a smoothing roller. A mounting box is welded to the middle of the front side and the middle of the rear side of the upper end of the frame. The smoothing roller is rotatably mounted on the right side between the two mounting boxes.
[0007] The gathering component includes a mounting frame and a smoothing roller. Multiple smoothing rollers are rotatably mounted at equal intervals on the left and right sides of the mounting frame. In actual use, the blown film module adopts a product model that is already available on the market and can meet the normal blown film production needs.
[0008] In a preferred embodiment, a second guide roller is rotatably mounted on the upper left side of the frame, and the second guide roller is positioned on the upper right side of the first guide roller.
[0009] As a preferred implementation, the smoothing assembly further comprises a guide roller three, a guide roller four and a fixed seat, the guide roller three is installed on the upper left end of the frame, the guide roller four is rotatably installed between the two installation boxes, and the guide roller four is located at the lower right side of the guide roller three.
[0010] As a preferred implementation, the front end and the rear end of the guide roller three and the front end and the rear end of the smoothing roller one are rotatably connected with a fixed seat, respectively, a plurality of fixed seats are slidably installed in the two installation boxes, and the inner side surfaces of the two installation boxes are designed as openings.
[0011] As a preferred implementation, a waist hole is formed in the top of each of the two installation boxes from left to right, a screw rod is welded to the upper side of each fixed seat, a nut is threadedly connected to each screw rod, and the diameter of the nut is greater than the width of the waist hole.
[0012] As a preferred implementation, the mounting bracket has an isosceles trapezoidal structure in the top view, a plurality of smoothing rollers two are distributed in the left and right sides of the mounting bracket in an isosceles trapezoidal structure, and the spacing between the plurality of smoothing rollers two in the left and right sides gradually increases from top to bottom.
[0013] As a preferred implementation, the structure of the smoothing roller one is the same as that of the smoothing roller two, the smoothing roller one comprises a rotating shaft, an outer sleeve and soft brush hairs, the outer side of the rotating shaft is provided with the outer sleeve, and the outer wall of the outer sleeve is uniformly distributed with a circle of soft brush hairs. In actual use, the center of the gap between the guide roller three and the smoothing roller one is collinear with the center of the mounting bracket in the top view, so that the film can be stably conveyed.
[0014] After the above technical scheme is adopted, the beneficial effects of the present application are as follows: compared with the traditional hard guide roller, the circle of soft brush hairs on the smoothing roller two can make soft contact with the just blown film, so as to avoid the generation of large and uneven pulling force to cause wrinkles, and ensure that the blown film has good flattening performance before winding.
[0015] The smoothing assembly is arranged, the fixed seats of the guide roller three and the front end and the rear end of the smoothing roller one are moved to adjust the guide roller three and the smoothing roller one, the blown film moves from the guide roller four to the guide roller three, and the circle of soft brush hairs on the smoothing roller one on the right side can perform secondary smoothing on the gathered film, so as to ensure that the finished film has no wrinkles after winding, and help to improve the product quality. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0017] Figure 1 It is a whole structure schematic view of the film blowing machine for PE plastic packaging bag production.
[0018] Figure 2 It is a schematic view of the connection between the smoothing assembly and the folding assembly of the film blowing machine for PE plastic packaging bag production.
[0019] Figure 3 It is a schematic view of the smoothing assembly structure of the film blowing machine for PE plastic packaging bag production.
[0020] Figure 4 It is a schematic view of the folding assembly structure of the film blowing machine for PE plastic packaging bag production.
[0021] In the figure, 100 is a rack, 110 is a film blowing module, 120 is an extension frame, 130 is a guide roller one, and 140 is a guide roller two;
[0022] 200 is a smoothing assembly, 210 is a frame, 220 is a guide roller three, 230 is a mounting box, 231 is a waist hole, 240 is a guide roller four, 250 is a fixing seat, and 260 is a smoothing roller one;
[0023] 300 is a folding assembly, 310 is a mounting frame, and 320 is a smoothing roller two. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0025] Please refer to Figures 1 to 4 The present application provides a technical solution: a film blowing machine for PE plastic packaging bag production, comprising: a rack 100, a smoothing assembly 200, and a folding assembly 300, the folding assembly 300 for folding the blown film is fixed inside the upper end of the rack 100, and the smoothing assembly 200 for guiding the transmission of the folded film is installed at the bottom of the rack 100.
[0026] A blow film module 110 for blow film production is mounted in the middle of the bottom of the rack 100, an extension frame 120 is welded to the left side of the middle of the rack 100, and a guide roller one 130 for guiding is rotatably mounted in the middle of the left end of the extension frame 120.
[0027] The smoothing assembly 200 comprises a frame 210, a mounting box 230, and a smoothing roller one 260, one mounting box 230 is welded to the front side and the rear side of the upper end of the frame 210, and the smoothing roller one 260 is rotatably mounted between the right side of the two mounting boxes 230.
[0028] The folding assembly 300 comprises a mounting frame 310 and a smoothing roller two, a plurality of smoothing roller twos are rotatably mounted on the left side and the right side of the mounting frame 310 at equal intervals, and in actual use, the blow film module 110 adopts an existing product type on the market, which meets the normal blow film production requirements.
[0029] Please refer to Figures 1 to 4 The guide roller two 140 is rotatably mounted on the upper side of the left end of the rack 100, and is located on the right upper side of the guide roller one 130.
[0030] The smoothing assembly 200 further comprises a guide roller three 220, a guide roller four 240, and a fixed seat 250, the guide roller three 220 is mounted on the upper side of the left end of the frame 210, the guide roller four 240 is rotatably mounted between the left side of the two mounting boxes 230, and the guide roller four 240 is located on the right lower side of the guide roller three 220.
[0031] The front end and the rear end of the guide roller three 220 and the front end and the rear end of the smoothing roller one 260 are rotatably connected with a fixed seat 250, a plurality of fixed seats 250 are slidably mounted in the two mounting boxes 230, and the inner side surfaces of the two mounting boxes 230 are designed as an opening.
[0032] A waist hole 231 is formed in the top of each of the two mounting boxes 230 from left to right, a screw rod is welded to the upper side of each fixed seat 250, a nut is threadedly connected to each screw rod, and the diameter of the nut is greater than the width of the waist hole 231.
[0033] The mounting frame 310 has an isosceles trapezoidal structure in the top view, a plurality of smoothing roller twos are distributed on the left side and the right side of the mounting frame 310 in an isosceles trapezoidal structure, and the spacing between the plurality of smoothing roller twos on the left side and the right side gradually increases from top to bottom.
[0034] As a first embodiment of the utility model, the setting of the smoothing assembly 200, in actual use, the operator can adjust the position of the guide roller three 220 and the smoothing roller one 260 according to the actual use demand, specifically, the user passes through the nut on the screw rod on the top of the fixed seat 250, makes the fixed seat 250 can move inside the installation box 230, reaches the purpose of adjusting the guide roller three 220 and the smoothing roller one 260 by moving the fixed seat 250 of the front end and rear end of the guide roller three 220 and the smoothing roller one 260, the film after blowing and drawing moves to the guide roller three 220 through the guide roller four 240, and the smoothing roller one 260 on the right side can carry out secondary smoothing to the film after gathering through a circle of soft brush hair on it, ensure that the film of finished product produces wrinkle after winding, help to improve the product quality of raw product.
[0035] Please refer to Figures 2 to 4 The structure of the smoothing roller one 260 is same with the structure of the smoothing roller two, the smoothing roller one 260 includes the pivot, the outer sleeve and the soft brush hair, the outer sleeve is set on the outside of the pivot, and a circle of soft brush hair is evenly distributed on the outer wall of the outer sleeve, in actual use, the center of the gap between the guide roller three 220 and the smoothing roller one 260 and the center of the mounting frame 310 are collinear in the overhead direction, ensure that the film can be stably conveyed.
[0036] As a second embodiment of the utility model, based on the above first embodiment, by setting the gathering assembly 300, since the structure of the smoothing roller one 260 is same with the structure of the smoothing roller two, the smoothing roller one 260 includes the pivot, the outer sleeve and the soft brush hair, and the outer sleeve is set on the outside of the pivot, and a circle of soft brush hair is evenly distributed on the outer wall of the outer sleeve, this makes the multiple smoothing roller two are all the structure with a circle of soft brush hair on the outside, compared with the traditional hard guide roller, a circle of soft brush hair on the smoothing roller two can make soft contact with the film just blown out, avoid generating the larger and uneven pulling force to cause its wrinkle, ensure that the film after blowing and drawing has good flattening performance before winding.
[0037] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A film blowing machine for PE plastic packaging bag production, comprising: The rack (100), the smoothing assembly (200) and the folding assembly (300) are characterized in that the folding assembly (300) for folding the blown film is fixed inside the upper end of the rack (100), and the smoothing assembly (200) for guiding the folded film is installed at the bottom of the rack (100); The film blowing module (110) for blowing film production is installed at the middle of the bottom of the rack (100), and the extension frame (120) is welded at the left middle of the rack (100), and the guide roller one (130) for guiding is rotatably installed at the left end of the extension frame (120); The smoothing assembly (200) comprises a frame (210), a mounting box (230) and a smoothing roller one (260), and the mounting box (230) is welded at the front middle and the rear middle of the upper end of the frame (210), respectively, and the smoothing roller one (260) is rotatably installed between the right sides of the two mounting boxes (230). The folding assembly (300) comprises a mounting frame (310) and a smoothing roller two, and the smoothing roller two is rotatably installed at the left side and the right side of the mounting frame (310) at equal intervals.
2. The film blowing machine for PE plastic packaging bag production of claim 1, wherein: The guide roller two (140) is rotatably installed at the upper side of the left end of the rack (100), and the guide roller two (140) is located at the right upper side of the guide roller one (130).
3. The film blowing machine for PE plastic packaging bag production according to claim 1, characterized in that: The smoothing assembly (200) further comprises a guide roller three (220), a guide roller four (240) and a fixed seat (250), the guide roller three (220) is installed at the upper side of the left end of the frame (210), the guide roller four (240) is rotatably installed between the left sides of the two mounting boxes (230), and the guide roller four (240) is located at the right lower side of the guide roller three (220).
4. The film blowing machine for PE plastic packaging bag production of claim 3, characterized in that: The front end and the rear end of the guide roller three (220) and the front end and the rear end of the smoothing roller one (260) are rotatably connected with a fixed seat (250), respectively, a plurality of fixed seats (250) are slidably installed in the two mounting boxes (230), and the inner side surfaces of the two mounting boxes (230) are designed as openings.
5. The film blowing machine for PE plastic packaging bag production of claim 4, characterized in that: A waist hole (231) is formed at the top of the two mounting boxes (230) from left to right, a screw rod is welded on the upper side of each fixed seat (250), a nut is threadedly connected on each screw rod, and the diameter of the nut is greater than the width of the waist hole (231).
6. The film blowing machine for PE plastic packaging bag production of claim 1, wherein: The mounting frame (310) is in isosceles trapezoidal structure in the top view, a plurality of smoothing roller twos are distributed on the left side and the right side of the mounting frame (310) in isosceles trapezoidal structure, and the spacing between the plurality of smoothing roller twos on the left side and the right side gradually increases from top to bottom.
7. The film blowing machine for PE plastic packaging bag production of claim 1, wherein: The structure of the smoothing roller one (260) is the same as that of the smoothing roller two, and the smoothing roller one (260) comprises a rotating shaft, an outer sleeve and soft brush hairs, the outer side of the rotating shaft is provided with an outer sleeve, and the outer wall of the outer sleeve is uniformly distributed with a circle of soft brush hairs.